- Добавил Bootstrap и настроил внешний вид форм приложения.

https://www.youtube.com/watch?v=a51jGwoTNmI&list=PLU2ftbIeotGpAYRP9Iv2KLIwK36-o_qYk&index=13

src/main/resources/application.properties

@@ -4,6 +4,7 @@ spring.datasource.username=user
 spring.datasource.password=123456
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 spring.freemarker.expose-request-attributes=true
+spring.freemarker.expose-session-attributes=true
 spring.freemarker.suffix=.ftl
 upload.path=/home/kashey/soft/sweater/uploads